C / C++ / MFC

struct xyz
{
    BYTE byHex[16];
    bool operator==(const xyz& other) 
    { 
        return 0 == memcmp(other.byHex, this->byHex, sizeof(this->byHex)); 
    }
    bool operator==(const BYTE buf[16]) 
    { 
        return 0 == memcmp(buf, this->byHex, sizeof(this->byHex)); 
    }
};

BYTE byBuff[16] = {0};
vector<xyz> m_vec;
vector<xyz> ::iterator viter;
viter = std::find(m_vec.begin(), m_vec.end(), byBuff);

Quote:

Could you please suggest a better algorithm which will save me from using memcmp?

struct xyz
{
    BYTE byHex[16];
    bool operator==(const xyz& other) const { return other.byHex == this->byHex; }
    bool operator==(const BYTE buf[16]) const { return buf == this->byHex; }
};

for (int i = 0; i < m_vec.size(); i++)
{
    if (MySearch(m_vec.at(i), searchValue))
    {
        // found
        break;
    }
}

// General header file
// Comment this to undefine
#define ACTIVE

// Any other file that has included above header file
#ifdef ACTION
// Do something
#endif

#ifndef ACTION
// Do something else
#endif

if (condition) 

p3im4n wrote:

but I cant use if statement in header!

// in header file
#if defined(foo)
// some code to be generated
#endif

// in cpp file
#define foo
#include <header file>